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  1. Minecraft: Java Edition
  2. MC-33134

Mineshaft.dat uses too much CPU

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    Details

    • Type: Bug
    • Status: Resolved
    • Resolution: Awaiting Response
    • Affects Version/s: Minecraft 13w39a, Minecraft 1.7.2, Minecraft 1.7.4, Minecraft 1.8.8, Minecraft 1.10.2
    • Fix Version/s: None
    • Environment:
      Microsoft Windows 7 Ultimate 64-bit
      Java 7 64-bit
      Intel Core 2 Duo e8400@3GHZ
    • Confirmation Status:
      Community Consensus
    • Game Mode:
      Survival

      Description

      After pruning files trying to figure out why server usage is so high even during idle and no players on, I discovered that the Mineshaft.dat file was the source of it.
      Before deletion the file was 839KB vs 14KB for the next largest file, Strongholds.dat.
      As for process usage before deletion the server will run at 60% usage on idle, after 20%. Running on a dual core@3GHZ that's a whopping 2.4GHZ of process generated permanently from the single file.
      I've tested the server file and pruned the .dat file on another of my computers (x6core) and it showed the same results.
      I may be wrong but I don't think the Mineshaft structure data file shouldn't be generating 2/3rds of a server's processes.
      Attached Image is a before and after of resources while on idle.
      Not sure what causes this (Process loop?) but I hope this report is helpful.

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              • Assignee:
                Unassigned
                Reporter:
                DoublesCheck DubsGuyFieri
              • Votes:
                49 Vote for this issue
                Watchers:
                15 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved:
                  CHK: